CN205643629U - A test system for portable electronic products PCBA board - Google Patents
A test system for portable electronic products PCBA board Download PDFInfo
- Publication number
- CN205643629U CN205643629U CN201620389391.5U CN201620389391U CN205643629U CN 205643629 U CN205643629 U CN 205643629U CN 201620389391 U CN201620389391 U CN 201620389391U CN 205643629 U CN205643629 U CN 205643629U
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- pin
- power supply
- fixture
- test
- voltage stabilizing
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Abstract
The utility model provides a test system for portable electronic products PCBA board, it includes steady voltage testing power supply and test fixture, be equipped with surge prevention module between steady voltage testing power supply and the test fixture, surge prevention module includes LDO steady voltage chip, LDO steady voltage chip includes IN pin, OUT pin, ADJ pin and GND pin, the IN pin is connected with the output of steady voltage testing power supply is anodal, the GND pin is connected with the output negative pole of steady voltage testing power supply, test fixture includes anchor clamps positive input terminal and anchor clamps negative pole input, the OUT pin is connected with anchor clamps positive input terminal, be connected with 4700UF's electric capacity between anchor clamps positive input terminal and the anchor clamps negative pole input. Adopt the technical scheme of the utility model, the firm output of control voltage electric current in PCBA test procedure, the surge in the twinkling of an eye that effectively reduces power supply causes the material to damage to PCBA.
Description
Technical field
This utility model relates to the test system of a kind of electronic product, particularly relates to a kind of test system for portable type electronic product PCBA board.
Background technology
Along with fast developments such as portable type electronic product such as mobile phone, flat board, e-book, the quality of product is had higher requirement by people, and manufacturer is when producing, it is necessary to product carries out more perfect test, it is ensured that the quality of product.At present, for the PCBA board of some portable type electronic products at SMT test phase, generally use conventional measuring technology, the omnidistance throttling relying on power supply itself and pressure limiting technology, but, this it is easily caused assembling test process and touch screen nonfunctional time terminal client uses in Product Experience the charging that can have 5%, and cannot occur by charging phenomenon, have a strong impact on use and the experience sense of user.Analyze reason, it may be possible to due to what power output signal was caused containing surging signal.
Utility model content
For above-mentioned technical problem, this utility model provides a kind of test system for portable type electronic product PCBA board, the stable output of voltage x current during monitoring test in PCBA board test process, PCBA is caused material to damage by the moment surge effectively reducing power supply, promotes client to satisfaction during to-be-experienced product.
To this, the technical solution of the utility model is:
A kind of test system for portable type electronic product PCBA board, it includes voltage stabilizing test power supply and test fixture, it is provided with Anti-surging module between described voltage stabilizing test power supply and test fixture, described Anti-surging module includes LDO voltage stabilizing chip, described LDO voltage stabilizing chip includes IN pin, OUT pin, ADJ pin and GND pin, described IN pin is connected with the output cathode of voltage stabilizing test power supply, and described GND pin is connected with the output negative pole of voltage stabilizing test power supply；Described test fixture includes fixture electrode input end and fixture negative input, described OUT pin is connected with fixture electrode input end, simultaneously, described OUT pin is connected by resistance R1 and ADJ pin, described ADJ pin is connected with fixture negative input after connecting with resistance R2, described OUT pin is connected with fixture negative input after connecting with electric capacity Cout, and connecting between described fixture electrode input end and fixture negative input has the electric capacity of 4700 μ F.Using this technical scheme, after voltage stabilizing test power supply is connected with Anti-surging module, when the PCBA board on test fixture is tested, transient voltage is stable, transient voltage can be prevented excessive and puncture PCBA power supply chip, and test first-pass yield is substantially improved；Can be that test system exports more stable electric current and voltage, and it has the function of anti-overflow and short-circuit protection so that this test system is more stable, reliable.
As further improvement of the utility model, the model of described LDO voltage stabilizing chip is MIC39102 chip.This technical scheme, MIC39102 chip is used to have overcurrent protection function, it is provided that short-circuit protection and overheat protective function, voltage stabilizing output services current stabilization, can reach 1A, output protection electric current reaches 1.5A, has better met testing requirement.
As further improvement of the utility model, the output voltage of described OUT pin is Vout, and the resistance of described resistance R1 and resistance R2 meets Vout=1.240V(1+R1/R2).
As further improvement of the utility model, described electric capacity Cout is the electric capacity of 4700UF.Using this technical scheme, when the PCBA board on test fixture is tested, transient voltage is stable, transient voltage can be prevented excessive and puncture PCBA power supply chip, and test first-pass yield is substantially improved.
As further improvement of the utility model, described Anti-surging module is provided with power supply output control switch.Use this technical scheme, can more easily be controlled.
Compared with prior art, the beneficial effects of the utility model are:
Using the technical solution of the utility model, the stable output of voltage x current during monitoring test in PCBA test process, PCBA is caused material to damage by the moment surge effectively reducing power supply, promotes client to satisfaction during to-be-experienced product.It addition, the energy accurately pressure limiting surge (U dc >=1.44Un) of MIC39102 chip, improving the PCBA material damage that moment surge causes, its pressure limiting technology can be greatly decreased product fraction defective, and it is easy for installation.
Accompanying drawing explanation
Fig. 1 is the structural representation of a kind of embodiment of this utility model.
Fig. 2 is the circuit diagram of the Anti-surging module of a kind of embodiment of this utility model.
Detailed description of the invention
Below in conjunction with the accompanying drawings, preferably embodiment of the present utility model is described in further detail.
As it is shown in figure 1, a kind of test system for portable type electronic product PCBA board, it includes voltage stabilizing test power supply and test fixture, is provided with Anti-surging module between described voltage stabilizing test power supply and test fixture.Again as in figure 2 it is shown, described Anti-surging module includes LDO voltage stabilizing chip, the model of described LDO voltage stabilizing chip is MIC39102 chip.Described LDO voltage stabilizing chip includes that IN pin, OUT pin, ADJ pin and GND pin, described IN pin are connected with the output cathode of voltage stabilizing test power supply, and described GND pin is connected with the output negative pole of voltage stabilizing test power supply；Described test fixture includes fixture electrode input end and fixture negative input, described OUT pin is connected with fixture electrode input end, simultaneously, described OUT pin is connected by resistance R1 and ADJ pin, described ADJ pin is connected with fixture negative input after connecting with resistance R2, described OUT pin is connected with fixture negative input after connecting with electric capacity Cout, and connecting between described fixture electrode input end and fixture negative input has the electric capacity of 4700 μ F.The output voltage of described OUT pin is Vout, and the resistance of described resistance R1 and resistance R2 meets Vout=1.240(1+R1/R2).Described electric capacity Cout is the electric capacity of 4700UF.
Preferably, described Anti-surging module is provided with power supply output control switch.
The detailed description of the invention of the above is better embodiment of the present utility model; not limit with this and of the present utility model be embodied as scope; scope of the present utility model includes being not limited to this detailed description of the invention, and the equivalence change that all shapes according to this utility model, structure are made is all in protection domain of the present utility model.
Claims (4)
1. the test system for portable type electronic product PCBA board, it is characterized in that: it includes voltage stabilizing test power supply and test fixture, it is provided with Anti-surging module between described voltage stabilizing test power supply and test fixture, described Anti-surging module includes LDO voltage stabilizing chip, described LDO voltage stabilizing chip includes IN pin, OUT pin, ADJ pin and GND pin, described IN pin is connected with the output cathode of voltage stabilizing test power supply, and described GND pin is connected with the output negative pole of voltage stabilizing test power supply；Described test fixture includes fixture electrode input end and fixture negative input, described OUT pin is connected with fixture electrode input end, simultaneously, described OUT pin is connected by resistance R1 and ADJ pin, described ADJ pin is connected with fixture negative input after connecting with resistance R2, described OUT pin is connected with fixture negative input after connecting with electric capacity Cout, and connecting between described fixture electrode input end and fixture negative input has the electric capacity of 4700UF.
Test system for portable type electronic product PCBA board the most according to claim 1, it is characterised in that: the model of described LDO voltage stabilizing chip is MIC39102 chip.
Test system for portable type electronic product PCBA board the most according to claim 2, it is characterised in that: the output voltage of described OUT pin is Vout, and the resistance of described resistance R1 and resistance R2 meets Vout=1.240V(1+R1/R2).
4. according to the test system for portable type electronic product PCBA board described in claim 1 ~ 3 any one, it is characterised in that: described Anti-surging module is provided with power supply output control switch.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620389391.5U CN205643629U (en) | 2016-04-29 | 2016-04-29 | A test system for portable electronic products PCBA board |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620389391.5U CN205643629U (en) | 2016-04-29 | 2016-04-29 | A test system for portable electronic products PCBA board |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205643629U true CN205643629U (en) | 2016-10-12 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620389391.5U Expired - Fee Related CN205643629U (en) | 2016-04-29 | 2016-04-29 | A test system for portable electronic products PCBA board |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205643629U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107479604A (en) * | 2017-07-24 | 2017-12-15 | 安徽力高新能源技术有限公司 | A kind of high precision closed loop feedback analog battery system |
| CN107797603A (en) * | 2017-10-13 | 2018-03-13 | 奥克斯空调股份有限公司 | A kind of output voltage test device of regulator block |
-
2016
- 2016-04-29 CN CN201620389391.5U patent/CN205643629U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107479604A (en) * | 2017-07-24 | 2017-12-15 | 安徽力高新能源技术有限公司 | A kind of high precision closed loop feedback analog battery system |
| CN107797603A (en) * | 2017-10-13 | 2018-03-13 | 奥克斯空调股份有限公司 | A kind of output voltage test device of regulator block |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20161012 Termination date: 20200429 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |